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Device Drivers Ppt

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Facebook Twitter LinkedIn Google+ Link Public clipboards featuring this slide × No public clipboards found for this slide × Save the most important slides with Clipping Clipping is a handy See our Privacy Policy and User Agreement for details. Sci., Florida State Univ., Tallahassee, FL; 2. The hardware preempts the currently executing thread The driver’s ISR does the minimum amount of work necessary The softirq handler does the rest of the driver’s work The Linux e1000 Driver http://depthvision.net/device-driver/device-driver-scsi-raid-host-controller-device-preventing.html

Why a device driver ? .. [contd.] Ring 0 Kernel Ring 1 Ring 2 Ring 3 Device Drivers Device Drivers Applications Lest Privileged Most Privileged Privilege rings available 6. Gopalan, K. What is a device driver?